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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
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+# @babel/plugin-proposal-unicode-property-regex
+
+Compile [Unicode property escapes](https://github.com/mathiasbynens/regexpu-core/blob/master/property-escapes.md) (`\p{…}` and `\P{…}`) in Unicode regular expressions to ES5 or ES6 that works in today’s environments.
+
+[Here’s an online demo.](https://mothereff.in/regexpu#input=var+regex+%3D+/%5Cp%7BScript_Extensions%3DGreek%7D/u%3B&unicodePropertyEscape=1)
+
+## Installation
+
+```sh
+npm install --save-dev @babel/plugin-proposal-unicode-property-regex
+```
+
+## Usage
+
+### Via `.babelrc` (recommended)
+
+`.babelrc`
+
+```json
+{
+ "plugins": ["@babel/plugin-proposal-unicode-property-regex"]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins @babel/@babel/plugin-proposal-unicode-property-regex script.js
+```
+
+### Via Node.js API
+
+```js
+require("@babel/core").transform(code, {
+ "plugins": ["@babel/plugin-proposal-unicode-property-regex"]
+});
+```
+
+To transpile to ES6/ES2015:
+
+```js
+require("@babel/core").transform(code, {
+ "plugins": [
+ ["@babel/plugin-proposal-unicode-property-regex", { "useUnicodeFlag": false }]
+ ]
+});
+```
+
+## Options
+
+* `useUnicodeFlag` (defaults to `true`)
+
+When disabled with `false`, the transform converts Unicode regexes to
+non-Unicode regexes for wider support, removing the `u` flag. See https://github.com/mathiasbynens/regexpu-core#useunicodeflag-default-false for more information.
+
+## Author
+
+| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
+|---|
+| [Mathias Bynens](https://mathiasbynens.be/) |